#reg{
    width: 100%;
    height: 100%;
    background: url(../images/reg.jpg) no-repeat center;
    background-size: 100% 100%;
}
#reg .reg_info{
    width: 400px;
    height: 500px;
    background-color: #ccc;
    opacity: 0.9;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border-radius: 10px;
}
#reg .reg_info h4{
    width: 100%;
    height: 40px;
    font-size: 24px;
    color: deepskyblue;
    text-align: center;
    line-height: 40px;

}
#reg .reg_info p:not(:nth-child(2)){
    width: 100%;
    height: 40px;
    float: left;
    text-align: center;
    line-height: 40px;
}
#reg .reg_info p:not(:nth-child(2)) input{
    width: 240px;
    height: 30px;
    border-radius: 5px;
    border: none;
    outline: none;
    text-indent: 8px;
    border-bottom: 2px solid #ccc;
}
#reg .reg_info p:not(:nth-child(2)) button{
    width: 240px;
    height: 30px;
    margin-left: 78px;
    background-color: skyblue;
    color: #fff;
    border: none;
    outline: none;
    border-radius: 5px;
    border-bottom: 2px solid darkcyan;
    font-size: 16px;
}
#reg .reg_info p:nth-child(2){
    float: right;
    margin-bottom: 50px;
    margin-right: 15px;
}
#reg .reg_info p:last-child{
    margin-top: 30px;
}
#reg .reg_info p:nth-child(2) a{
    font-size: 14px;
    color: deepskyblue;
}
#reg .reg_info p:nth-child(2) a:hover{
    text-decoration: underline;
}
#reg .reg_info>span{
    width: 240px;
    height: 20px;
    font-size: 12px;
    color: red;
    line-height: 20px;
    margin-left: 130px;
}
#reg .reg_info p:last-child button:hover{
    background-color: deepskyblue;
    cursor: pointer;
}